Stacking Pressure Reducing Valve, 10 mm
With integral Bypass Check Valve, Seated Pilot Stage,Spool−type Main Stage, Series SDRB ...
S 350 bar, 100 l/min
S With two−stage 10 mm pressure re-ducing cartridge DRPA−5−10 ...S 350 bar, 100 l/min on all ports S Pilot stage is drained to port T
S Optionally available with hand knob or lockable hand knob adjuster
mnsS Also available with solenoid con-trolled two−pressure cartridge WDRVPB−5...−10
S Mounting interface to
SO 4401 / CETOP R35H size 5,NFPA D05, DIN 24 340 A10
1.Description
−10 stack valves are ud as pressure reducing valves in the P−, A− or B−lines. They are equipped with the two−stage pressure reducing cartridge type DRPA−5−10...,the pilot stage is drained to port T . While the pressure in P1 (A1, B1) remains below the valve tting, the connection P → P1 (A → A1, B → B1) remains fully open. As soon as the pressure in P1
(A1, B1) ris above the tting, the pressure reducing function becomes active. The control spool holds the pressure in P1 (A1, B1) at the valve t-ting, independently of the primary pres-sure at P (A, B). Pilot flow occurs only while the reducing function is active and is approximately 300 cc/min (e Performance graphs). Model SDRB−
P−10... is provided with a G 1/4" gauge connection on the condary pressure side. The bypass check valve in mo-dels SDRB−AR / BR−10... allows re-ver flow from A1 to A or B1 to B. The screw−in design of the cartridge valve provides for straight−forward, trouble−free maintenance. Interface aling is by means of a al plate and 5 O−rings.
2.Symbols
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SDRB−P−10 ...M
P A B T
SDRB−AR−10 ...
2P A
B T
SDRB−BR−10 (3)
Valve side
Valve side
3.Main characteristics
Designation
stacking pressure reducing valve
Design
two−stage, ated pilot, sliding spool
Mounting method stack mounting
Size ISO 4401 size 5 interface
Weight
kg
SDRB−P−10 ... = 2,90, SDRB−AR / BR−10 ... = 3,0
Mounting attitude unrestricted Flow direction
e symbols
Operating pressure range bar ... 350 in P , A, B and T
Adjustment ranges
bar
pressure range N = 010 ... 350pressure range M = 010 ... 210pressure range L = 010 ... 065Flow rate, Qmax
l/min
1 ... 100, e performance limits墨西哥世界杯
Fluids
HL and HLP hydraulic oils to DIN 51 524;for other fluids, plea consult BUCHER
Fluid temperature range _C −25 ... +80Ambient temperature _C
−25 ... +80
Viscosity range
mm 2/s (cSt)10 ... 650, recommended 15 (250)英文邀请信
Minimum fluid cleanliness level
18/14 to ISO 4406 / CETOP RP70H; 8 ... 9 to NAS 1638
4.Performance graphs
Measured with oil viscosity 33 mm 2/s (cSt)
SDRB−P−10−..N p−Q characteristics with p in T = 0 (bar)
→ Q (l/min)
→ Q (l/min)
→ Q (l/min)
→ p P 1 (b a r )
→ p P 1 (b a r )→ p P 1 (b a r )
→ Q (l/min)
→ Q (l/min)
→ Q (l/min)
→ p A 1 (p B 1) (b a r )
SDRB−P−10−..M p−Q characteristics with p in T = 0 (bar)
SDRB−P−10−..L p−Q characteristics with p in T = 0 (bar)
SDRB−AR / BR−10−..N p−Q characteristics with p in T = 0 (bar)
SDRB−AR / ZR−10−..M p−Q characteristics with p in T = 0 (bar)SDRB−AR / ZR−10−..L p−Q characteristics with p in T = 0 (bar)
→ p A 1 (p B 1) (b a r )
→ p A 1 (p B 1) (b a r )
∆p−Q characteristic A1→A (B1→B)
3020406080100
402010
∆p−Q characteristic P →P1 (A →A1 / B →B1)
→ ∆p (b a r )
→ Q (l/min)
Pilot oil flow P →T (A →T) (B →T)is approx 300 cc/min
25020015010025
300204060
80
100
21015010025
20406080100
204060
80
100
654020P e r f o r m a n c e l i m i t s
P e r f o r m a n c e l i m i t s
P e r f o r m a n c e l i m i t s 503010
50350250200150100
25
300204060
80
100
21015010050204060
80
100
3020406080100
6550402010
P e r f o r m a n c e l i m i t s
P e r f o r m a n c e l i m i t s
P e r f o r m a n c e l i m i t s
25
lo weight
350Rate of pressure change
when turning the adjusting screw:
SDRB−..−10−..N:SDRB−..−10−..M:SDRB−..−10−..L: 1 turn app. 60 (bar)1 turn app. 38 (bar)1 turn
app. 13 (bar)
5.Dimensions
Adjuster style S (Standard)
27 A/F , tightening torque Ma = 23 ... 27 Nm
station
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如何提升进店率OPTIONS
Adjuster style H
Hand knob (can be
fitted later by ur)
Adjuster style Z4
Lockable hand knob
type 2H complies with
Volkswagen Factory
Specification BV 1.09
(factory option only)
6.Schematic ction
showing the relevant ports
Ex. SDRB−AR−10 ...
Seal kit no. DS−220, comprising:
卡萨布兰卡歌曲Itm.Qty.Description Size
11Seal∅ 22,1 x 16,5 x 2,5
22O−ring no. 020∅ 21,95 x 1,78 N90
31O−ring∅ 14 x 2
41O−ring no. 013∅ 10,82 x 1,78 N90
51O−ring no. 012∅ 9,25 x 1,78 N90
62Backup ring∅ 13,7/1,4x1,4 FI0751
75O−ring no. 014∅ 12,42 x 1,78 N90
81Snap ring∅ 9 type SS
91O−ring no. 018∅ 18,77 x 1,78 N90
101O−ring no. 016∅ 15,60 x 1,78 N90
111Backup ring∅ 15,3/1,5x1,4 FI0751
7.Installation and rvicing
All installation and rvicing must be
carried out with care, and by qualified
personnel only. At Installation, be sure
to mount the valve with the correct
faces contacting the adjacent units
and with all interface connections lining
up properly. When changing als, the
new als should be thoroughly oiled or
gread before fitting them to the valve.
U the correct tightening torque when
fitting the cartridge.
8.Ordering code
S A ... Q Z ... R S L M N Z H (blank)V Special als by arrangement
==========stacking valve standard model per current data sheet special features by arrangement with hex. skt. screw adjuster (standard)pressure range 10 .... 65 bar (Light)pressure range 10 ... 210 bar (Medium)pressure range 10 ... 350 bar (Normal)with lockable hand knob adjuster type Z4with hand knob adjuster Viton als
S DR B −10S N _
DR =Pressure reducing function
−A −Ex.
10=ISO 4401 size 5 interface A =function from A to A1B =function from B to B1R R =with bypass check valve P =function from P AR... und ...BR... only
Nitrile als (standard)=9.Related data sheets
Old no.New no.
i−00400−P−010101−E Table of interface equivalents i−41400−P−050101−E DIN 24 340 size A10 interface
D−4.36400−P−280201−E Two−stage pressure reducing cartridge, 10 mm, ries DRPA−5−10 ...G−45
400−P−810901−E
Seal plate type DB−10
Germany
Phone +49 7742 85 20Fax +49 7742 71 16
info. BUCHER HYDRAULICS
France
Phone +33 389 64 22 44Fax +33 389 65 28 78info. Netherlands
Phone +31 79 34 26 24 4Fax +31 79 34 26 28 8info. UK
Phone +44 24 76 35 35 61Fax +44 24 76 35 35 72info. Switzerland
Phone +41 33 67 26 11 1Fax +41 33 67 26 10 3info.
Italy
Phone +39 0522 92 84 11Fax +39 0522 51 32 11info.
Austria
Phone +43 6216 44 97Fax +43 6216 44 97 4
leave me alone
China
Phone +86 10 64 44 32 88Fax +86 10 64 44 32 35info.
Product Center (Elevator)Phone +41 41 757 03 33Fax +41 41 757 16 49
info.
USA
Phone +1 262 605 82 80
Fax +1 262 605 82 78info. We rerve the right of modification without notice.
